OJ Electronics OTD2 User manual

1

Type OTN2 / OTD2

with room or ﬂoor sensor

English .......................1

Deutsch .....................4

Русский ...................7

Polski .......................10

Українська ..............13

57097C 09/15 (JRK)

USER MANUAL

Contents

Introduction

Microline

®

electronic thermostat for installation in standard wall

box. The thermostat allows the required temperature to be set

within the range 0-40°C. An LED indicates whether heating is

active. The thermostat is suitable for ELKO and NORWESCO

systems S-16, RS-16 and UNI-10. An extra frame is supplied with

the unit.

Microline product programme

OTN2-1991 with ﬂoor sensor

OTN2-1999 with built-in room sensor

OTD2-1999 with built-in room sensor and external limitation sensor

CE marking

Applied standards

EN 61000-6-3, EN 61000-6-2, EN 60 730-1 and EN 60730-2-9.

The product may only be used if the complete installation complies

with current directives.

The thermostat must only be installed by an authorised electrician.

If the product has been damaged in any way, e.g. during transport,

it must be inspected and checked by authorised personnel before

being connected to the power supply.

The product carries a manufacturer’s warranty if installed in ac-

cordance with these instructions and applicable regulations.

Type OTN2 / OTD2 with room or ﬂoor sensor English

Technical data

Purpose of control .............Electronic room thermostat for regulating

electric underﬂoor heating

Voltage .......................................................... 230 V AC ±15% 50 Hz

Max. pre-fuse ............................................................................ 16 A

Built-in circuit breaker ...................................................2-pole, 16 A

Output relay ........................................... Make contact - SPST - NO

Output ................................................................Max. 16 A / 3600 W

Control principle .................................................................. ON/OFF

Temperature range .............................................................+0/+40°C

Dierence/hysteresis ................................................................ 0.4°C

Economy temperature ........................................... 5°C (2-8°C OTD2)

- control voltage signal ....................................................... 230 V AC

Frost protection temperature ........................................5°C absolute

- control voltage signal via rectiﬁer diode ......................... 230 V AC

Range limits .......................................................................min./max.

Sensor fault protection ............................................................. -20°C

Ambient operating temperature ............................................0/+30°C

Method of mounting ....................should be mounted independently

in a wall box in the ﬁxed installation

Type of action..... ......................................................................... 1.B.

Control pollution degree.... .............................................................. 2

Software class..... ............................................................................ A

Overvoltage category ......................................................................III

Rated impulse voltage..... ............................................................ 4kV

Ball pressure temperature..... .................................................. 125°C

Dimensions ..................................................... H/84, W/84, D/40 mm

Enclosure rating ........................................................................ IP 21

The thermostat is maintenance free.

Introduction ................................................................................ 1

Microline product programme ................................................. 1

CE marking................................................................................. 1

Technical data ............................................................................ 1

Sensor installation ..................................................................... 2

Installation of thermostat ........................................................ 2

Environment protection/recycling ........................................... 3

Product disposal ........................................................................ 3

2

Type OTN2 / OTD2 with room or ﬂoor sensor English

Classification

Protection against electric shock must be guaranteed by ap-

propriate mounting. The requirements of Class II are fulﬁlled after

appropriate mounting (reinforced insulation). The thermostat must

be connected as follows:

Term. 1: Live (L1) 230 V ±15%, 50/60 Hz

Term. 2: Neutral (L2)

Term. 3–4: Max. load 16 A, 3600 W

Pollution class: 2

Pollution class 2, representative of air circulation in typical homes.

Overvoltage category: III

Pulse voltage 4 kV to IEC 60664-1.

Sensor installation

Floor sensor:

The ﬂoor sensor should be installed in standard conduit embedded

in the ﬂoor. The conduit should be sealed and positioned as close

to the ﬂoor surface as possible.

Room sensor:

The room sensor should be installed in a standard wall box or

mounted direct on the wall. Sensor cables can be extended up

to a maximum of 10 m in length using power cable. Two wires in

a multi-wire cable must, however, not be used if the cable is also

used to supply power to heating cables. The best result is achieved

if a separate cable, installed in a separate conduit, is used for the

sensor.

Installation of thermostat

Built-in or external room sensor

The thermostat or external room sensor should be mounted on a

wall in such a way as to allow free air circulation around it. It must

also be positioned so as to prevent it from being aected by direct

heat sources (e.g. the sun), draughts from doors and windows, or

outside temperature (i.e. do not mount on outer walls). MICROLINE

has a built in fault circuit which switches the heating o if the sen-

sor is disconnected or short-circuited.

Thermostat installation

- Open cover.

- Unscrew cover and remove.

- Connect wires from rear as shown in wiring diagram.

- Mount thermostat in wall box - ﬁt frame and cover.

Temperature setting

Interrupter

LED

Increase temperature

Programming button (P)

Decrease temperature

MICROLINE has a temperature setting range of 0-40°C.

Set the wanted temperature with the arrow buttons, the set tem-

perature shows in the display. The thermostat will calculate the best

way to control the heating system in order to achieve the desired

temperature. If necessary, ﬁne adjustment can be performed after 1

or 2 days.

Night setback

The night setback/economy temperature function is activated via a

230 V signal from an external timer connected to terminal S.

The function is factory set to 5°C (2-8° OTD2). The LED lights green

when the economy signal is active and red when heating is active.

Frost protection

If the signal is connected via a rectiﬁer diode, the thermostat will

maintain a ﬂoor/room temperature of 5°C.

Settings

To set parameter values, press and hold the programming button

for 3 seconds. SCA  Hi  40 will be shown on the display. Firstly,

SCA will be displayed for 1 second, followed by Hi, and ﬁnally 40.

The required value can then be set using the arrow buttons. To

access the next parameter, press the programming button again. If

no buttons are pressed for 30 seconds, the program returns to the

initial display.

Parameter Shown on display Factory setting

OJ standard

OTD2 -1999 OTN2 -1991 OTN2 -1999

Max. temperature

SCA  Hi  40

40°C (0-40°C) • • •

Min. temperature

SCA  Lo  0

0°C (0-40°C) • • •

Max. limit temperature FLOOR

Li  Hi  28

28°C (15-55°C) •

Min. limit temperature FLOOR

Li  Lo  15

15°C (5-30°C) •

Measure ﬂoor temperature

FLo  24.5

•

Measured room temperature

ro  21.5

•

Application

APp  A : Room sensor *1

• •

 F : Floor sensor *2

• •

 AF : Room with Limit sensor *2

•

 C : Controller

•

Oset

oFF 

0 0 (+/- 3°C) • • •

Night setback/ECO

nSb 

5 5°C (2-8°C) •

*1 : Only available if ﬂoor sensor is not installed

*2 : Only available if ﬂoor sensor is installed

If Controller (C) is selected under Application, the ﬂoor and room sensors are disconnected and heating is controlled on a scale of 0-10,

corresponding to 0-100% activated

Error codes

E1 - Sensor error. Sensor is short-circuited or disconnected. The LED is ﬂashing red once.

E2 - Limit error. The temperature on the ﬂoor has surpassed max. limit temperature. The thermostat switch o the heating and the LED is

ﬂashing red twice.

E5 - Overheating. The temperature is too high in the termostat and switch o the heating. The LED is ﬂashing 5 times.

3

Environment protection/recycling

Help protect the environment by disposing of the packaging and

redundant products in a responsible manner.

Product disposal

Products marked with this symbol must not be dis-

posed of together with household refuse but must be

delivered to a waste collection centre in accordance

with current local regulations.

OJ Electronics A/S

Stenager 13B · DK-6400 Sønderborg

Tel.: +45 73 12 13 14 · Fax +45 73 12 13 13

[email protected] · www.ojelectronics.com

Type OTN2 / OTD2 with room or ﬂoor sensor English

-10

0

10

20

30

64000

38000

23300

14800

9700

Valor (ohmios)

Sensor

Temp. (°C)

BR929A08-E

Sensor table Night setback Frost protection

BR929A08-E

BR949A06-A

BR949A07-A

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16

OJ ELECTRONICS A/S

Stenager 13B · DK-6400 Sønderborg

Tel.: +45 73 12 13 14 · Fax +45 73 12 13 13

[email protected] · www.ojelectronics.com

OJ Electronics OTD2 User manual

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